Ultraviolet absorber UV-328
2-(2'-Hydroxy-3'-5'-di-tert-amylphenyl)benzotriazole
CAS: 21615-49-6
Molecular Formula: C22H29N3O
Ultraviolet absorber UV-328 - Names and Identifiers
| Name | 2-(2'-Hydroxy-3'-5'-di-tert-amylphenyl)benzotriazole |
| Synonyms | TINUVIN 328 ULTRAVIOLET ABSORBER UV-328 2-(2-Hydroxy-3,5-diamylphenyl)benzotriazole 2-(2H-BENZOTRIAZOL-2-YL)-4,6-DI-T-PENTYLPHENOL 2-(2'-Hydroxy-3',5'-Dipentylphenyl)Benzotriazole 2-(2'-HYDROXY-3',5'-DI-TERTAMYLPHENYL)BENZOTRIALE 2-(2-HYDROXY-3,5-DI-TERT-AMYLPHENYL)BENZOTRIAZOLE 2(2'-HYDROXY-3',5'-DI-TERT-AMYLPHENYL)BENZOTRIAZOLE 2-(2'-Hydroxy-3'-5'-di-tert-amylphenyl)benzotriazole 4,6-Di-tert-amyl-2-(5-chloro-2H-benzotriazol-2-yl)-phenol |
| CAS | 21615-49-6 |
| EINECS | 247-384-8 |
Ultraviolet absorber UV-328 - Physico-chemical Properties
| Molecular Formula | C22H29N3O |
| Molar Mass | 351.49 |
| Density | 1.10±0.1 g/cm3(Predicted) |
| Melting Point | 80-83°C |
| Boling Point | 515.1±60.0 °C(Predicted) |
| pKa | 8.59±0.50(Predicted) |
Ultraviolet absorber UV-328 - Introduction
2-(2 '-Hydroxy-3'-5 '-di-tert-amylphenyl)benzotriazole is an organic compound with the chemical formula C26H39N3O and a molecular weight of 413.61g/mol. The following is a description of its nature, use, preparation and safety information:
Nature:
-Appearance: White crystal or crystalline powder
-Melting point: 84-88 ° C
-Solubility: Soluble in organic solvents such as ether, chloroform, benzene and dilute acid, insoluble in water
-Stability: relatively stable to light and heat, but may decompose under strong acid and alkali conditions
-Optical properties: The compound can absorb ultraviolet light and protect the polymer from ultraviolet light damage through absorption and scattering.
Use:
-UV absorber: 2-(2 '-Hydroxy-3'-5 '-di-tert-amylphenyl)benzotriazole has good UV absorption properties, it can be widely used to prevent aging and decomposition of materials such as polymers and coatings under ultraviolet light. It acts as a UV-A and UV-B absorber, effectively protecting the material from UV radiation.
-Preservative: This compound can also be used as a preservative to protect dyes.
Method:
The synthesis of 2-(2 '-Hydroxy-3'-5 '-di-tert-amylphenyl)benzotriazole is usually obtained by combining 2-aminobenzotriazole with 2-(2'-Hydroxy-3 ',5'-dipentylphenyl) ethanone is obtained by reaction under alkaline conditions. Specific synthetic methods can be found in handbooks of organic synthesis or the relevant literature.
Safety Information:
Because 2-(2 '-Hydroxy-3'-5 '-di-tert-amylphenyl)benzotriazole is widely used in industry, its safety has been fully studied. Here are some basic safety considerations:
-Use should wear protective glasses and gloves to ensure good ventilation.
-Avoid contact with skin and eyes. If there is contact, rinse with plenty of water immediately and consult a doctor.
-Avoid inhaling its dust or vapor, try to operate in a well-ventilated place.
-Avoid contact with oxidants and strong acids during storage, and avoid high temperatures and fire sources.
-Handle and store in accordance with relevant regulations and do not dump or discharge.
Nature:
-Appearance: White crystal or crystalline powder
-Melting point: 84-88 ° C
-Solubility: Soluble in organic solvents such as ether, chloroform, benzene and dilute acid, insoluble in water
-Stability: relatively stable to light and heat, but may decompose under strong acid and alkali conditions
-Optical properties: The compound can absorb ultraviolet light and protect the polymer from ultraviolet light damage through absorption and scattering.
Use:
-UV absorber: 2-(2 '-Hydroxy-3'-5 '-di-tert-amylphenyl)benzotriazole has good UV absorption properties, it can be widely used to prevent aging and decomposition of materials such as polymers and coatings under ultraviolet light. It acts as a UV-A and UV-B absorber, effectively protecting the material from UV radiation.
-Preservative: This compound can also be used as a preservative to protect dyes.
Method:
The synthesis of 2-(2 '-Hydroxy-3'-5 '-di-tert-amylphenyl)benzotriazole is usually obtained by combining 2-aminobenzotriazole with 2-(2'-Hydroxy-3 ',5'-dipentylphenyl) ethanone is obtained by reaction under alkaline conditions. Specific synthetic methods can be found in handbooks of organic synthesis or the relevant literature.
Safety Information:
Because 2-(2 '-Hydroxy-3'-5 '-di-tert-amylphenyl)benzotriazole is widely used in industry, its safety has been fully studied. Here are some basic safety considerations:
-Use should wear protective glasses and gloves to ensure good ventilation.
-Avoid contact with skin and eyes. If there is contact, rinse with plenty of water immediately and consult a doctor.
-Avoid inhaling its dust or vapor, try to operate in a well-ventilated place.
-Avoid contact with oxidants and strong acids during storage, and avoid high temperatures and fire sources.
-Handle and store in accordance with relevant regulations and do not dump or discharge.
Last Update：2024-04-10 22:29:15
